An odd bug. Was wondering if anybody could help.

About a month month ago I purchased a Logitec G15 USB headset. The sound quality is excellent, however in Ubuntu 11.04 (this also occurs on my Windows 7 OS, it's just not as loud) whenever I scroll up/down a web page, play a YouTube video which is not enlarged, or do something else that is, I guess, "graphically intensive", I hear static. It's very odd and I was not quite sure what to search for in order to find assistance, so I came to you, Reddit! I hope that somebody knows what the hell is going on and how I can fix it.

Thanks for your time.

EDIT: Thought I'd mention that this did not occur with my old headset, however it received audio through the 3.5mm jack.